in an experiement, 5 g of licl is dissolved into 40 ml of water orginally at 17 c in a calorimeter. the temperature rises to 40.3. determine the molar heat of solution of li cl

Answers

Answer 1

Moler Heat of solution is 32.7 kJ/mol

The molar heat of a solution(ΔH) is calculated by the formula

               ΔH=q/n

Where, n-Number of moles

q- Energy of the system

q is calculated by the formula

              q=m×c×ΔT

Where ΔT=(T_f-T_i)

T_f=40.3°C, T_i=17°C

ΔT=(40.3-17)°C=23.3°C

c=4.18 J/g°C

The mass of water is

m=40 ml×(1 g/1 ml)=40 g

Substitute all values in the formula

q=40g×(4.18 J/g°C)×23.3°C

q=3895.76 J

The molar mass of LiCl is 42g/mol.  

The moles of LiCl  =5g×(1 mol/42 g)=0.11905 mol

Hence, the molar heat of a solution is

ΔH=3895.76 J/0.11905 mol =32723.7295 J/mol

Convert the value in kJ

ΔH=32723.7295 J/mol×(1 kJ/1000 J)=32.7 kJ/mol

Therefore, the molar heat of a solution is 32.7 kJ/mol.

To learn more about Moler Heat:

brainly.com/question/29658772

#SPJ4


Related Questions

a sample of saline solution has a mass of 165.0 g. it is placed in a 54.3-g evaporating dish. after evaporation, the dish and its contents have a mass of 56.7 g. what is the percentage by mass of sodium chloride in the solution?

Answers

Mass percentage is a term that represents the concentration, basically mass by mass percentage. It tells about the percentage of a component in a whole component. Therefore, 25.85% is the percentage by mass of sodium chloride in the solution.

What is percentage by mass?

Mass percentage represents the the percentage of each element that is making a particular compound. Mass percentage does not have any unit as numerator and denominator contains the same unit.

Mathematically,

Percentage of mass = (component’s mass ÷ total mass) x 100%

Total mass = 165.0g+ 54.3g

                 = 219.3g

mass of sodium =56.7 g

Percentage by mass = (56.7 g/  219.3g )×100

                                  = 25.85%

Therefore, 25.85% is the percentage by mass of sodium chloride in the solution.

To learn more about mass percentage, here:

https://brainly.com/question/27429978

#SPJ1

                           

the rocks that glaciers transport at their base scratch the underlying surface and create striations and deeper gouge marks that we call glacial .

Answers

The rocks that glaciers transport at their base scratch the underlying surface and create striations and deeper gouge marks that we call glacial grooves.

What is glaciers ?

The word "glacial" is also applied to chemical compounds that have a propensity to crystallize into ice at temperatures just below room temperature. Pure organic acids that are present in their pure and anhydrous form are where this type of phenomenon that results in the formation of ice-like crystals occurs.

What is glacial grooves?

Rock and sediment fragments are mixed into the ice as glaciers flow over land. The sole of the glacier, which is where the inclusions are, resembles a rough sandpaper that can scratch bedrock as a result of these inclusions.

Therefore, rocks that glaciers transport at their base scratch the underlying surface and create striations and deeper gouge marks that we call glacial grooves.

Learn more about glacial grooves from the given link.

https://brainly.com/question/9143309

#SPJ4

if the addition of bromine to trans-cinnamic acid proceeds purely by the expected anti addition the product will be

Answers

If the addition of bromine to trans-cinnamic acid proceeds purely by the expected anti addition the product will be erythro racemic mixture of the 2R,3S/2S,3R enantiomers.

What is the meaning of racemic mixture?

A mixture is known as racemic mixture, when that mixture contains equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another. A racemic mixture is also known as racemate.

Hence, addition of bromine to trans-cinnamic acid results in the formation of racemic mixture with two enantiomers.

Learn more about Racemic mixture from the link given below.

https://brainly.com/question/29561619

#SPJ4

this is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive mtbe):a chemical engineer has determined by measurements that there are 1.1 moles of carbon in a sample of methyl tert-butyl ether. how many moles of hydrogen are in the sample?be sure your answer has the correct number of significant digits.

Answers

According to the chemical formula (C5H12O),0.0723 moles of hydrogen using ratio and proportion.The tert-Butyl methyl ether molecule consists of 12 H atom(s), 5 Carbon atom(s) and 1 Oxygen a total of 18 atom(s).

What is the purpose of tert-butyl methyl ether?

Since the 1980s, flammable methyl tert-butyl ether (MTBE) has been added as a fuel additive to unleaded gasoline. The pollution-reducing compound MTBE raises the octane and oxygen content of gasoline.

What class of substance is an MTBE?

Methyl tertiary-butyl ether (MTBE), also called tert-butyl methyl ether and methyl tert-butyl ether, is an organic molecule having the chemical formula (CH3)3COCH3. MTBE is a colorless, combustible liquid that is only sporadically soluble in water.

Learn more about gasoline here:

https://brainly.com/question/2166121

#SPJ4

gallium is produced by the electrolysis of a solution made by dissolving gallium oxide in concentrated naoh(aq).naoh(aq). calculate the amount of ga(s)ga(s) that can be deposited from a ga(iii)ga(iii) solution using a current of 0.390 a0.390 a that flows for 80.0 min.

Answers

The amount of Gallium that can be deposited is 0.450 g.

Obtain the equation of gallium (III) to gallium that occurs in the electrolysis.

Ga³⁺ + 3 e⁻ → Ga

The relations important for the calculations are:

1 minute = 60 second

1 Ampere = 1 Coulomb / second

The charge of 1 mole of electrons is 96,468 Coulomb (Faraday's constant)

1 mole of gallium is deposited when 3 moles of electrons circulate.

The molar mass of gallium = 69.72 g/mol

Obtain the mass of gallium deposited from a Ga(III) solution using a current of 0.390 A that flows for 80.0 min

80 min × 60s/1min × 0.390c/s × 1 mole⁻/96,468c × 1 mol Ga/3 mole⁻ × 69.72g/1mol Ga = 0.450 g

Hence the mass of the Ga deposited is 0.450 g.

Learn more about mass from the link given below.

https://brainly.com/question/19866201

#SPJ4

if a radioactive substance has a half-life of one year how much of it will be unchanged after four years

Answers

After four years, only one-sixteenth (1/16) of the original radioactive substance will remain unchanged.

What is an atom?

A chemical element is uniquely defined by its atoms, which are tiny pieces of substance. An atom is made up of a core nucleus and one or more negatively charged electrons that orbit it. The positively charged, comparatively hefty protons and neutrons that make up the nucleus may be present.The fundamental building components of matter are atoms. Atoms make up anything that has mass and occupies space.The atomic mass, also known as the atomic weight, is the sum of the masses of the protons, neutrons, and electrons in an atom. In atomic mass units, the weight or mass of an atom is expressed.

This is because each half-life period causes the amount of the substance to decrease by half. After one year, half of the substance will remain, and after two years, one quarter (1/4) of the original substance will remain. After three years, one eighth (1/8) of the original substance will remain, and after four years, one sixteenth (1/16) of the original substance will remain unchanged.

To know more about atoms, click the link given below:

https://brainly.com/question/13518322

#SPJ4

A solution containing 1.00 mg of iron (III) (as the thiocyanate complex) in 100 mL was observed to transmit 60.0 % of the incident light compared to an appropriate blank
Molar mass of Iron (III) thiocyanate= 230.0922 g/mol
a) What is the absorbance of the solution at this wavelength?
b) What is the transmittance of a solution of iron four times as concentrated?

Answers

Thiocyanate is a frequently utilized ligand because it offers valuable precursors for a variety of coordination complexes and has multiple bonding mechanisms to one or more transition metal ions.

What is thiocyanate complex ?

Thiocyanate typically forms terminal bonds with first row transition metals via the nitrogen.

Thiocyanates have a variety of uses in the construction business, agriculture, metal and steel industry, textile and fiber industry, and so forth.The thiol group of thiocyanic acid is deprotonated to produce thiocyanate, a pseudohalide anion. It serves as a metabolite for humans. It is a sulfur molecular compound and a pseudohalide anion. It is an isothiocyanic acid and thiocyanic acid conjugate base.

To know more about Thiocyanate complex please click here ; https://brainly.com/question/14970414

#SPJ4

37.25 g of a hydrate was heated until all of the water in the hydrate evaporated. The mass of the anhydrous compound remaining was 26.81 g. What is the percent by mass of water in the hydrate?

Answers

Mass percentage is a term that represents the concentration, basically mass by mass percentage. It tells about the percentage of a component in a whole component. Thus, the mass percentage of water in given compound is 27.9%.

What is percentage by mass?

Mass percentage represents the the percentage of each element that is making a particular compound. Mass percentage does not have any unit as numerator and denominator contains the same unit.

Hydrated compound + Δ[tex]\rightarrow[/tex] anhydrate compound +water

mass of hydrate compound =mass of anhydrate compound + mass of water

mass of hydrate compound=37.25 g

mass of anhydrate compound=26.81 g

37.25 g =26.81 g+ mass of water

mass of water=10.4g

Percentage of mass of water = (component’s mass ÷ total mass) x 100%

Percentage of mass of water = (10.4g ÷37.25 g) x 100%

                                                 =27.9%

Thus, the mass percentage of water in given compound is 27.9%.

To learn more about mass percentage, here:

https://brainly.com/question/27429978

#SPJ1

suppose rory applies a current to an aqueous solution of sodium bromide. which species is produced at the cathode? o2(g)o2(g) na(s)na(s) h2(g)h2(g) br2(l)br2(l) which species is produced at the anode?

Answers

The species is produced at the cathode

2Na + 2e⁻ → 2Na followed by 2Na  + H₂O → Na⁺ + OH⁻ + H₂

The species is produced at the anode

2 Br⁻ → Br₂ + 2e⁻

What do anode and cathode mean?

The negative or reducing electrode, known as the anode, undergoes electrochemical reaction when it oxidizes and releases electrons to the external circuit. During the electrochemical reaction, the cathode, also referred to as the positive or oxidizing electrode, is reduced after receiving electrons from the external circuit.

Balanced reaction:

2Na + 2Br → Br₂ + Na₂⁺ + 2OH⁻

At cathode:

2Na + 2e⁻ → 2Na followed by 2Na  + H₂O → Na⁺ + OH⁻ + H₂

At anode:

2 Br⁻ → Br₂ + 2e⁻

To know more about cathode visit:

https://brainly.com/question/13074008

#SPJ1

describe what difference, if any, there would be between the boiling point of alcohol measured in houston and in denver

Answers

The boiling point of alcohol will vary between Texas and Denver due to differences in air pressure.

What four different types of alcohol exist?

The four types of alcohol are rubbing, isopropyl, denatured, and ethyl. The most popular and well-known variety is ethanol, also referred to as grain alcohol or ethanol. Since it is created by the fermentation of glucose and yeast, it is present in beer, wine, and liquor.

Do you know what alcohol is?

When we talk about alcohol, we most often mean the alcohol found in beer, beer, and spirits. Due to the alcohol in such drinks, you become intoxicated. The type of alcohol contained in drinks is known as ethanol (ethyl alcohol). Yeast ferments the carbohydrates found in grains, fruit, and veggies to create

To know more about alcohol visit:

https://brainly.com/question/4698220

#SPJ4

Can a pure element be a compound? Why or why not?

Answers

Yes, compounds are pure substances as they are made of molecules that are formed by the union of atoms of different elements through chemical bonding. Hence, molecules are the fundamental unit of compounds. Each compound is made of only one type of molecule.

NaHCO3 + HCI → NaCl + H₂O + CO₂
NaHCO3: 82.99 g/mol
You previously determined that a
particular sealed container holds
0.261 mol CO2 gas. What mass of
NaHCO3 is needed to generate the CO2?
Hint: Use stoichiometry

Answers

Answer: 14.34

Explanation:

when 50.0 g block of a metal at 500 oc is plunged into 50.0 g of water (specific heat capacity 4.2 j/g.oc) at 20 oc, the final temperature of both the metal and the water is 60 oc. if no heat is lost to the surroundings, what is the specific heat capacity of the metal in j/g.oc? give your answer to 2 significant figures.

Answers

The specific heat capacity of the metal is 0.3818.

Heat (released) = Heat (absorbed)

As we know,

Q = mcΔT = m × c × [T (final) - T (initial)]

∴ -[m₁ × c₁ × {T (final) - T₁}] = [m₂ × c₂ × {T (final) - T₂}]

Where,

q = heat absorbed or released

m₁ = mass of metal = 50.0 g

m₂ = mass of water = 50.0 g

T (final) = final temperature = 60° C

T₁ = temperature of metal = 500° C

T₂ = temperature of water = 20° C

c₁ = specific heat of metal = ?

c₂ = specific heat of water = 4.2 j/g°c

Now substitute the values in eq (1) and solve for c₁,

-[50 × c₁ × {60 - 500}] = [50 × 4.2 × {60 - 20}]

⇒ -[50 × c₁ × -440] = [50 × 4.2 × 40]

⇒ 22000 c₁ = 8400

⇒ c₁ = 8400/22000

⇒ c₁ = 0.3818

Hence, specific heat capacity of the metal is 0.3818.

Learn more about specific heat from the link given below.

https://brainly.com/question/20308923

#SPJ4

Question 1 (5 points)
Balance the following equation. Remember to put 1 in spaces that you would normally leave blank.

Answers

Answer:

Coefficient of 1 for all except Cl2, which has a coefficient of 3.

Explanation:

The left side of the equation has 6 chlorine atoms, so the right side also needs 6 chlorine atoms.

what kind of intermolecular forces act between a hydrogen chloride molecule and a chloromethane molecule?

Answers

The type of intermolecular forces act between a hydrogen chloride molecule and a chloromethane molecule is dipole dipole interaction.

Since we know that chloromethane and hydrogen chloride both the molecules are polar in natures.They are attracted by the dipole-dipole interaction between them.So they have dipole dipole interaction between them.Dipole–dipole interactions are weak interactions brought forth by the near proximity of induced or permanent dipoles. Van der Waals interactions are the name given to these forces taken as a whole. These interactions are widespread in proteins and range widely in strength. Examples of polar compounds that interact dipole-dipole include hydrogen chloride (HCl), carboxylic acids (such as acetic acid), and amino acids. A polar molecule's positive end will pull another molecule's negative end and change the other molecule's position.

To learn more about dipole- dipole interaction visit:

brainly.com/question/7545068

#SPJ4

You add 100. 0 g of water at 60. 0°c to 100. 0 g of ice at 0. 00°c. Some of the ice melts and cools the water to 0. 00°c. When the ice and water mixture has come to a uniform temperature of 0°c, how much ice has melted?.

Answers

As the ice and water mixture in the given situation becomes a uniform temperature of 0°c, the amount of ice that has melted is 75.4g.

Different substances require different amounts of heat to cause a temperature change. The specific heat capacity of a substance refers to the quantity of heat required to increase the temperature of a unit quantity of the substance by one degree. Hence, the amount of heat added Q is given by:

Q = w x Cp x ∆T

where w is the weight of substance, Cp is specific heat of material, and ∆T is the change in temperature.

According to given data,

w = 100gm

Cp = 4.186J/g°c

∆T = -60

Hence, the amount of heat needed to melt ice is:

Q =100.0g (4.186J/g°c) (-60°C) = -25116J

When the mixture is at a uniform temperature, heat lost by water which is gained by ice is given by

Q = m*ΔH

Where ΔH is the change in enthalpy.

Hence,

-25116J = m*333J/g

m = -75.4g

Therefore, mass of ice is 75.4 g.

Learn more about Specific heat capacity:

https://brainly.com/question/21406849

#SPJ4

Provide a detailed procedure for the conversion of a tertiary alcohol to an alkyl halide via a SN1 reaction. Compare (and explain) the difference in reaction mechanism when primary alcohols are used instead of a tertiary alcohol. All chemical structures should be hand drawn. You can add images into your responses by clicking on the icon that looks like a mountain landscape. Cut and paste text/figures will not be graded.

Answers

Primary alcohols react using the SN2 mechanism, whereas secondary and tertiary alcohols react using the elementary SN1 process, where no carbocation is produced.

What separates tertiary alcohol from primary alcohol?

The carbon atoms attached to OH can be used to identify the kind of alcohol.According on how many other carbons are linked to that carbon, the alcohol is categorized as primary, secondary, or tertiary.

Why does primary alcohol respond more quickly than secondary alcohol?

Tertiary alcohols' alkyl groups provide electron density to the alcohol's oxygen, which reduces the alcohol's acidity.When a result, the acidity of alcohol reduces as more alkyl groups are connected to an alcohol functional group on carbon.

To know more about SN1 reaction visit:

brainly.com/question/10666011

#SPJ4

if your titration results in a magenta color, what is the limiting reactant and what is the excess reactant at that point?

Answers

As more ions are added, which decreases reading accuracy, if the titrated solution is dark in color at the conclusion of the titration, the molar concentration or molarity of HCl will be higher than the true value.

What does the term "titration" mean?

Chemical qualitative analysis employs the titration method, commonly referred to as titrimetry, to determine the concentration of a particular analyte in a mixture. Titration is a crucial analytical chemistry technique also referred to as volumetric analysis.

The titration principle is what?

The basic concept of the titration is as follows: The next step is to provide a titrant or standard solution to the sample to be tested.

To know more about molarity visit:

https://brainly.com/question/2817451

#SPJ4

Students are comparing the functions of carbohydrates and lipids. Which cellular function would be shared between carbohydrates and lipids?.

Answers

The function which carbohydrates and lipids shared with each other is energy storage. So the option a is correct.

Complex carbohydrates (e.g. polysaccharides) and lipids both contain a lot of chemical energy and can be used for energy storage.Complex carbohydrates and lipids are both insoluble in water - they are not easily transported.Carbohydrates and lipids both burn cleaner than proteins (they do not yield nitrogenous wastes).Lipid molecules contain more energy per gram than carbohydrates (about twice as much)Carbohydrates are more readily digested than lipids and release their energy more rapidlyAnimals tend to use carbohydrates primarily for short-term energy storage, while lipids are used more for long-term energy storage

Carbohydrates offer a ready source of fuel to your cells, while lipids can store energy in your fat tissue for later use.. Carbohydrates and lipids both contain carbon (C), hydrogen (H), and oxygen (O).

Carbohydrates are animals main source of energy.

The most common lipids in animals are fats that are present in specific cells as an essential cell part and supply energy for cellular activities. The cell membranes  hormones and vitamins are made up of lipids.

Your question is incomplete most probably your full question was

Students are comparing the functions of carbohydrates and lipids. Which cellular function would be shared between carbohydrates and lipids?

a) energy storage

b) protein formation

c) energy consumption

To look more about carbohydrates click here

brainly.com/question/14614055

#SPJ4

how would the retention times of the compounds change if the solvent composition was changed from 55 vol% acetone and 45 vol% water to 85 vol% acetone and 15 vol% water?

Answers

The retention times of the compounds change if the solvent composition was changed from 55 vol% acetone and 45 vol% water to 85 vol% acetone and 15 vol% water is decreases..

The acetone and the water mixture is polar . this makes the example of reversed phase reaction. Acetone is the polar molecule and the water is also o polar molecule and there mixture is polar mixture.

For the polar solutes which are separated by the hydrophilic interaction chromatography. the the solvent composition changed from the 55 vol% of the acetone and the 45 vol% of the water to the 85 vol% of the acetone and the 15 vol% of the water , the retention times decreases.

To learn more about retention times here

https://brainly.com/question/14190650

#SPJ4

A single replacement reaction is a reaction in which one element replaces a similar element within a compound.

Answers

A single replacement reaction, also known as a single displacement reaction, occurs when one element in a molecule is swapped out for another.

In a single replacement reaction, what replaces what?

When one element replaces another in a compound, it is known as a single replacement reaction. A + BC → B + AC is a good representation of this kind of reaction. When two ionic compounds exchange ions and create two new ionic compounds, this is known as a double replacement reaction.

What reaction occurs when one element in a compound substitutes another?

Replacement is the reaction that occurs when one element swaps places with another in a compound or when two components in two separate compounds switch places.

Learn more about replacement reaction here:

https://brainly.com/question/15995721

#SPJ4

Consider two separate samples of sf6 (g) and n2 (g), both at 1. 00 atm and containing same number of moles. If the temperature of the sf6 (g) sample is 16. 0 oc, at what temperature (oc) will the n2 (g) sample have the same root mean square velocity as sf6 (g)?

Answers

The temperature of N2 will be -217.6 C.

Define molar mass:

A chemical compound's mass M is equal to its amount of substance, expressed in moles, multiplied by its mass.

By definition:

Vrms = sqrt ( 3RT/M)

Here R is the gas constant

Given:

N2 and SF6 have the same root mean square velocity

so

Tn2 / Mn2 = Tsf6 / Msf6

Given:

Tsf6 = 16 C = 22 + 273 K = 289 K

Msf6 = 146.06 g/mol

Mn2 = 28 g/mol

Tn2 = ??

Now,

Tn2 / 28 = 289 K / 146.06

Tn2 = 55.40 K

Tn2 = 55.40 - 273 C

Tn2 = -217.6 C

Therefore, the temperature of N2 will be -217.6 C.

To learn more about molar mass from the given link.

https://brainly.com/question/837939

#SPJ4

explain why the spectra belongs with methyl butanoate. did the spectra you picked match your initial description?

Answers

Ester group presence is shown by the carbonyl stretching C=O. for ester, which is found to be about 1735 cm-1.

It is an oily layer that forms on water at normal temperature and is a colourless liquid with low solubility in water. In addition to this, the structure of methyl butanoate can also be determined using IR spectra.

What is the purpose of methyl butanoate?

A white liquid with an apple-like odour is methyl butyrate. It serves as a solvent as well as a flavouring and aroma ingredient.

Methyl butyrate is a member of the group of organic substances called fatty acid methyl esters.

"Methyl butanoate" is the name given to the ester produced by the condensation reaction between methanol and butanoic acid.

To know more about IR spectra, visit:

https://brainly.com/question/29039407

#SPJ4

Which guideline, Hund's rule or the Pauli exclusion principle, is violated inthe following orbital diagrams?
Please help!!!!

Answers

a) pauli exclusion principle
- 2 elections with opposing spins



hunds rule is the rule that lower energy levels must fill before higher energy levels

a melting point test as performed on the alum sample. what two things does this test tell you about a compound

Answers

a melting point test as performed on the alum sample. It confirms the identity of the compound and measures its purity. Impurities decrease the melting point and gives a bigger range of melting point.

The point at which a material transforms from a solid to a liquid is commonly referred to as the melting point. The melting point of a liquid is the temperature at which, under atmospheric pressure, a solid transforms into a liquid. At this time, both the liquid and solid phases are in equilibrium. A substance's melting point is the temperature at which, under normal pressure, it transforms from a solid state to a liquid state. 0 degrees Celsius applies to water (32 Fahrenheit, 273,15 Kelvin). Alum is an inorganic chemical compound that often consists of sulfates, aluminum or other metals, and water molecules. Alum is essentially hydrated aluminum double sulfate salt.

Learn more about melting point here:

https://brainly.com/question/29578567

#SPJ4

the decay rate for a radioactive isotope is 3.3 percent per year. find the half-life of the isotope. round to the nearest tenth of a year.

Answers

The half-life of the isotope is 21 years when the decay rate for a radioactive isotope is 3.3 percent per year.

It is given that in the isotope the decay rate for a radioactive isotope is 3.3 percent per year, then the half-life of the isotope can be computed by the following formula,

Half-Life formula:

N(t) = No e^-λt............(1)

Where,

N(t) is the amount of isotope at time 't'

No is the Initial Amount of isotope.

λ is the decay constant

t is time in years. (here).

Then, N(t) = No/2 at half-life.......(2)

λ = 3.3/100

λ = 0.033

Substituting (2) in (1) we get,

No/2 = No e^-0.0033t

1/2 = No e^-0.0033t

By taking ln on either sides, we get

ln (1/2) = ln(e^-0.0033t)

ln(1/2) = -0.033t ln(e)

ln(1/2) = -0.033t

t = -1/0.033 ln(1/2)

t = +0.693147181/0.033

t = 21.0125672

t = 21 years

The half-life of the isotope is 21 years.

To know more about the decay rate, click below:

https://brainly.com/question/25537936

#SPJ4

Using VSEPR theory, predict the electron group geometry, molecular shape, and the bond angles in a molecule that contains 6 electron groups (5 bonds and 1 lone pair electrons).
a. octahedral, octahedral, 90°
b. octahedral, square planar, 90°
c. octahedral, square pyramidal, 90°

Answers

A six-electron group molecule's molecular structure, bond angles, and electron group geometry are trigonal pyramidal, stetrahedral, and 109.5°, respectively.

An electron's composition

It is possible for an electron to be free or linked to an atom. There are three main types of particles in an atom: protons, neutrons, and an electron that is bonded to an atom.

What purposes serve electrons?

To create cross-platform desktop apps using HTML, CSS, and JavaScript, GitHub created the open source package called Electron. By fusing Node and Chromium, Electron achieves this. Apps may be bundled for Linux, Windows, and Mac using a single runtime that supports JavaScript.

To know more about Electrons visit:

https://brainly.com/question/1255220

#SPJ4

Undecane is an alkane that contains an 11-carbon chain. How many hydrogen atoms are in undecane?.

Answers

Straight-chain alkane undecane has 11 Carbon atoms in it.

How many atoms of hydrogen and carbon are there in decane?

10 carbon atoms and 22 hydrogen atoms are covalently linked together to form the hydrocarbon decane. Decane is a member of the enormous organic family known as alkanes. The only atoms in the hydrocarbon molecules of the alkane family are carbon and hydrogen.

An alkyne with 16 carbon atoms has how many hydrogen atoms?

Consequently, the alkyne with 16 hydrogen atoms has the formula C9H16 C 9 H 16. Alkenes are hydrocarbons with a double bond connecting the carbon atoms. Their usual formula is CnH2n, or C n H 2 n. 2n = 44, where n is the number of hydrogen atoms.

Learn more about Decane here:

brainly.com/question/16770563

#SPJ4

a galvanic (voltaic) cell consists of an electrode composed of iron in a 1.0 m iron(ii) ion solution and another electrode composed of silver in a 1.0 m silver ion solution, connected by a salt bridge. calculate the standard potential for this cell at 25 °c. refer to the list of standard reduction potentials.

Answers

The galvanic or voltaic cell has a cell potential of 1.1 V.

Using the Nernst equation: Under unusual circumstances, the cell potential of an electrochemical cell can be determined using the Nernst equation.

Now that we are aware of that;

E= 0.0592/nlog - E° Q E° = 1.1 - 0.0592/2 log(1/1)

E° = 1.1 V

Consequently, the voltaic or galvanic cell's cell potential is 1.1 V.

electrode: the metal strip on which the reaction occurs.

An electrode where oxidation takes place is an anode.

an electrode where reduction takes place is a cathode.

A voltaic cell's salt bridge is the chamber of electrolytes required to complete the circuit.

To learn more about electrochemical please click on below link

https://brainly.com/question/12034258

#SPJ4

If the half-life of a radioactive element is 8 years, what percentage of the original sample would be left after 32 years?.

Answers

If the half-life of a radioactive element is 8 years, 6.25% of the original sample would be left after 32 years.

The half-life of a radioactive element is the amount of time it takes for half of the original sample of the element to decay. After 8 years, half of the original sample would have decayed, leaving 50% of the original sample. After 16 years, half of that remaining sample would have decayed, leaving 25% of the original sample.

After 24 years, half of the remaining sample would have decayed, leaving 12.5% of the original sample. After 32 years, half of the remaining sample would have decayed, leaving 6.25% of the original sample.In conclusion, after 32 years, only 6.25% of the original sample would be left.

To know more about decay time, click below:

https://brainly.com/question/16979893

#SPJ4

Other Questions
Constructed Response Prompt:How can a person have physical sight but no "vision"?How can a person have "vision" but no physical sight? To answer, think about the circumstances that bring about either of these conditions.HERE is a template for you to use:"A person can have physical sight, meaning he/she can see such things as ____________ or _____________, but that same person might not have "vision," for example ________________________________. On the other hand, a person might not have physical ability to see, but the person can have vision, such as" please answer asap. The typical characteristics for binge-eating disorder include binge-eating episodes a. that are not accompanied by compensatory behaviors. b. that occur at least once per month for three months in a row. c. that do not cause distress or shame. d. at holidays or during social occasions. at what speed do a bicycle and its rider, with a combined mass of 100 kg , have the same momentum as a 1800 kg car traveling at 4.8 m/s ? which equation represents a proportional relationship A. y=4x B. 5x+2 C. y= 7 D. y= 3x Pls help me!!!Which are the characteristics of an analytical argument?A. It includes formal and scientific-sounding language. B. It is highly effective in appealing to readers' emotions. C. It is based on evidence from the text and other reliable sources.D. It picks apart quoted passages from the literary text. x+y=8 now let x=0 what is y if the mean result from the four tests is compared to the criterion 140 mg/dl, what is the probability that shelia is diagnosed as having gestational diabetes? two procedures for modifying behavior that use discriminative stimuli (sds) in the form of demonstrations or descriptions produced by another person are training and training. what happens during coal formation after plants die and fall to the bottom of a swamp?(1 point) responses heat and pressure build up. heat and pressure build up. sediment and rock pile on top. sediment and rock pile on top. overall plant growth declines. overall plant growth declines. carbon-rich coal is formed. I need some help with this question:Similar to enzymes, the viral antigens that bind to the surface of the host cell work using a very specific "lock-and-key" mechanism. This is why each virus can only infect one type of cell. If you were a scientist developing an antiviral drug that would block binding of the virus to the host cell how would you do that? Include the terms antigen and active site. Underline these terms in your answer. While roller-skating, Granny collides with her tiny grandson Ambrose who is at rest. Ignoring a. Granny catches him and they both move together.b. he and Granny make a bouncing collision, each going in opposite directions. people that call themselves teams but don't take the risks of conflict, joint work products, or collective action necessary to build a common purpose, set goals, approach, and mutual accountability are at best: the main reason auditors investigate property, plant, and equipment that has been replaced, sold, dismantled, or abandoned during the year is to what magnitude of current is required to produce 1.4 kg of sodium metal in one hour? express your answer in amperes to two significant figures. Carrie buys two pounds of ground beef at the store, intending to make hamburgers one night for dinner. As the week goes byCarrie realizes she's not going to be able to cook the hamburger meat before it goes badIn order for Carrie to preserve this meat, which would be her BEST option? Can the meat in a glass jar Store the meat in a box of salt. Freeze the meat in her freezer. Add vinegar to pickle the meat which stakeholder group is most likely to view higher profits as a key objective? a. employees b. shareholders c. suppliers d. customers I don't know the answer! 43 points for the person who helps!! the nurse is identifying outcomes for a teenager diagnosed with anorexia nervosa. which outcome has the greatest impact on long-term prognosis? The Bureau of Labor Statistics divides the adult population into four categories: employed, underemployed, unemployed, and not in the labor force. Use the quadratic function to predict y if x equals 7.y=2x-3x+3y=-77y=-80y=80y=77